Inventor
NAKATSUKA KEISUKE
JP56 patents
⚠️ This page may combine multiple inventors who share the name “NAKATSUKA KEISUKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KIOXIA CORP
28 patentsUS11422712B2Aug 23, 2022
Storage device and storage system including a memory to store a check code for an integrity check
KIOXIA CORP2 citations72
US12384624B2Aug 12, 2025
Storage device and control method
KIOXIA CORP0 citations62
US12232325B2Feb 18, 2025
Semiconductor storage device
KIOXIA CORP0 citations62
US12142324B2Nov 12, 2024
Semiconductor storage device and system
KIOXIA CORP0 citations62
US11862246B2Jan 2, 2024
Memory system
KIOXIA CORP0 citations62
US11574663B2Feb 7, 2023
Data latch circuit and semiconductor memory device
KIOXIA CORP0 citations62
US11942431B2Mar 26, 2024
Semiconductor device and manufacturing method thereof
KIOXIA CORP0 citations60
US11437324B2Sep 6, 2022
Semiconductor device and manufacturing method thereof
KIOXIA CORP0 citations60
US11289505B2Mar 29, 2022
Semiconductor memory device
KIOXIA CORP1 citations59
US12573459B2Mar 10, 2026
Semiconductor storage device having depletion-type memory cell transistors
KIOXIA CORP0 citations52
US12507415B2Dec 23, 2025
Semiconductor memory device
KIOXIA CORP0 citations52
US12463164B2Nov 4, 2025
Semiconductor memory device
KIOXIA CORP0 citations52
US12432937B2Sep 30, 2025
Semiconductor memory device with plurality of arrays
KIOXIA CORP0 citations52
US12382632B2Aug 5, 2025
Memory device
KIOXIA CORP0 citations52
US12381147B2Aug 5, 2025
Chip bonded semiconductor memory device with different charge storage films
KIOXIA CORP0 citations52
US12349359B2Jul 1, 2025
Semiconductor memory device
KIOXIA CORP0 citations52
US12300650B2May 13, 2025
Semiconductor memory device
KIOXIA CORP0 citations52
US12204765B2Jan 21, 2025
Memory system
KIOXIA CORP0 citations52
US11984394B2May 14, 2024
Semiconductor memory device having contact plugs extend in the stacking direction of the plurality of the first and second conductive layers
KIOXIA CORP0 citations52
US11450611B2Sep 20, 2022
Semiconductor device and method of manufacturing the same
KIOXIA CORP0 citations52
US11411016B2Aug 9, 2022
Semiconductor memory device
KIOXIA CORP0 citations52
US11276700B2Mar 15, 2022
Semiconductor memory device
KIOXIA CORP0 citations52
US12562228B2Feb 24, 2026
Data latch circuit and semiconductor storage device
KIOXIA CORP0 citations51
US11923325B2Mar 5, 2024
Storage system, memory chip unit, and wafer
KIOXIA CORP0 citations51
US12532483B2Jan 20, 2026
Semiconductor memory device
KIOXIA CORP0 citations50
US12347513B2Jul 1, 2025
Semiconductor memory device
KIOXIA CORP0 citations49
US11688726B2Jun 27, 2023
Semiconductor device
KIOXIA CORP0 citations49
US12444681B2Oct 14, 2025
Semiconductor device and method for manufacturing the same
KIOXIA CORP0 citations48
TOSHIBA MEMORY CORP
14 patentsUS11121147B2Sep 14, 2021
Semiconductor storage device
TOSHIBA MEMORY CORP2 citations73
US11107508B2Aug 31, 2021
Semiconductor memory device
TOSHIBA MEMORY CORP5 citations73
US10991713B2Apr 27, 2021
Semiconductor memory device
TOSHIBA MEMORY CORP2 citations73
US10049711B2Aug 14, 2018
Magnetoresistive memory device
TOSHIBA MEMORY CORP3 citations73
US9934834B2Apr 3, 2018
Magnetoresistive memory device
TOSHIBA MEMORY CORP3 citations73
US9887237B2Feb 6, 2018
Magnetic storage device
TOSHIBA MEMORY CORP3 citations72
US10867641B2Dec 15, 2020
Data latch circuit and semiconductor memory device
TOSHIBA MEMORY CORP1 citations62
US10748920B2Aug 18, 2020
Semiconductor memory device
TOSHIBA MEMORY CORP1 citations62
US10311929B2Jun 4, 2019
Resistance change memory
TOSHIBA MEMORY CORP1 citations60
US11011541B2May 18, 2021
Semiconductor memory device in which memory cells are three-dimensionally arrange
TOSHIBA MEMORY CORP0 citations52
US10978471B2Apr 13, 2021
Semiconductor memory device
TOSHIBA MEMORY CORP0 citations52
US10636809B2Apr 28, 2020
Semiconductor memory device
TOSHIBA MEMORY CORP0 citations52
US10020040B2Jul 10, 2018
Semiconductor memory device
TOSHIBA MEMORY CORP0 citations52
US11227832B2Jan 18, 2022
Semiconductor memory device having a memory cell and semiconductor layer
TOSHIBA MEMORY CORP0 citations49
NAKATSUKA KEISUKE
4 patentsUS9190452B2Nov 17, 2015
Semiconductor memory device
NAKATSUKA KEISUKE4 citations72
US9401386B2Jul 26, 2016
Semiconductor memory device
NAKATSUKA KEISUKE1 citations61
US9773539B2Sep 26, 2017
Logical operation circuit and memory device
NAKATSUKA KEISUKE1 citations51
US8659061B2Feb 25, 2014
Solid-state image capturing element
NAKATSUKA KEISUKE0 citations51
TOSHIBA KK
3 patentsDAIKIN IND LTD
1 patentShowing the top 50 of 56 patents by PatentIndex Score.